BEIJING/SHANGHAI/LONDON (Reuters) - Chinese bitcoin exchange BTCChina said on Thursday that it would stop all trading from Sept. 30, setting off a further slide in the value of the cryptocurrency that left it over 30 percent away from the record highs ...

BEIJING/SHANGHAI/LONDON (Reuters) - Chinese bitcoin exchange BTCChina said on Thursday that it would stop all trading from Sept. 30, setting off a further slide in the value of the cryptocurrency that left it over 30 percent away from the record highs it hit earlier in the month.